Sun Zero’s Easton Blackout Energy Efficient Curtains are designed to block out almost every hint of unwanted sunlight, in addition to reducing noise and saving energy along the way. Machine-washable and made of 100% polyester, these wallet-friendly curtains provide complete privacy and refuge from unwanted rays. According to the manufacturer, they work so well that a lamp has to be turned on to see inside a room when they’re closed during the day.

Available in 12 easy-to-match colors and four sizes, prices run between $9 and $17 per panel. Not bad a bad price for a good night of sleep! (Keep in mind: The darker the curtain color, the better the light reducing capabilities.)

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“These are really great curtains. They darken all the rooms I put them in,” one Amazon shopper wrote.

Another wrote: “I'm very impressed, especially for being so affordable.”